663229093 has 2 divisors, whose sum is σ = 663229094. Its totient is φ = 663229092.

The previous prime is 663229057. The next prime is 663229111. The reversal of 663229093 is 390922366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 469935684 + 193293409 = 21678^2 + 13903^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-663229093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663229493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331614546 + 331614547.

It is an arithmetic number, because the mean of its divisors is an integer number (331614547).

Almost surely, 2^663229093 is an apocalyptic number.

It is an amenable number.

663229093 is a deficient number, since it is larger than the sum of its proper divisors (1).

663229093 is an equidigital number, since it uses as much as digits as its factorization.

663229093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 663229093 is about 25753.2346123744. The cubic root of 663229093 is about 872.0763779612.

The spelling of 663229093 in words is "six hundred sixty-three million, two hundred twenty-nine thousand, ninety-three".